Round: 44 Ground: Hardcourt outdoor
| ITF M15 Castellon | 2019/11/03 13:30 | Nicolas Moreno De Alboran v Alvaro Guillen Meza | 6-4,6-0 |
| ITF M15 Benicarlo | 2019/10/21 09:00 | Diego A B Sanchez v Alvaro Guillen Meza | 6-1,6-2 |
| ITF M15 Sabadell | 2019/09/29 07:00 | Alvaro Guillen Meza v Sergio Barranco | 4-6,7-6,5-10 |
| ITF M25 Portoviejo | 2019/08/08 15:00 | Alvaro Guillen Meza v Fermin Tenti | 5-7,1-6 |
| ITF M25 Portoviejo | 2019/08/06 18:10 | Alvaro Guillen Meza v Javier Naser | 6-4,3-6,6-1 |
| ITF Spain F29 | 2018/09/22 11:00 | Pau Perez Contri v Alvaro Guillen Meza | 4-6,6-3,6-3 |
| ITF Spain F23 | 2018/08/13 16:00 | Alvaro Guillen Meza v Alvaro Lopez San Martin | 2-6,2-6 |
| ITF Spain F23 | 2018/08/12 08:30 | Chinmaya Dev Chauhan v Alvaro Guillen Meza | 4-6,3-6 |
| ITF M15 Monastir | 2020/02/02 10:00 | Sam Taylor v Bastian A U Santander | 6-2,6-3 |
| ITF M15 Monastir | 2020/01/26 10:00 | Bastian A U Santander v Alessandro Procopio | 2-6,2-6 |
| ITF M15 Monastir | 2020/01/19 08:00 | Mihailo Popovic v Bastian A U Santander | 6-2,6-2 |
| ITF M15 Antalya | 2019/04/29 06:45 | Bastian A U Santander v Marius Ruzgas | 6-7,7-6,5-10 |
| ITF M15 Antalya | 2019/03/25 07:00 | Yan Sabanin v Bastian A U Santander | 6-2,6-1 |
| ITF Turkey F21 Qual | 2018/05/28 07:30 | Joel Cannell v Bastian A U Santander | 6-0,6-1 |
| ITF Turkey F20 Qual | 2018/05/20 07:30 | Greg Polmans v Bastian A U Santander | 6-4,7-5 |
| ITF Turkey F19 Qual | 2018/05/12 07:30 | Bastian A U Santander v Mattia Rossi | 7-6,6-7,4-6 |